fathom

fathom [-s] n

OE faeðm, thread or line.

1. Measurement; mark; nautical gauge to calculate cables, cordage, and depth by a line and a lead; (see Acts 27:28).

fathom [-ed, -ing] v

OE.

1. Measure; reach; assess; sound the depth of; [fig.] confront; scare; terrify mentally; sink into the soul of.